Toshiba e-STUDIO 4500c, Service Manual

Page: 389 / 1120

April, 2007 SPECIAL PROCEDURES
4-11
4. Correct the errors in the vertical lines (this corrects errors in the main scan
direction). See the following table for how to do this.
NOTE: In the table, a dotted line indicates a colored line (C, M, or Y). For
example, the first row of the table shows you how to adjust the machine
if a colored line is to the right of the black line on the test pattern.
SP Action
Decrease the value 2101 002 (M)
2101 003 (C)
2101 004 (Y)
Unit of adjustment: One dot (43.2
µ
m)
Increase the value
5. Correct the errors in the horizontal lines (this corrects errors in the sub scan
direction). See the following table for how to do this.
SP Action
Increase the value
2101 013 (M)
2101 014 (C)
2101 015 (Y)
Unit of adjustment: One line (84.6
µ
m)
Decrease the value
6. Do steps 1 and 2 again.
7. If there are color registration errors, then do steps 1 through 6 again.